/Engine/Source/Runtime/MovieScene/Public/IMovieSceneMetaData.h
Called fromULevelSequence::GetAssetRegistryTagsin order to extend its default set of tags to include any from this meta-data object.
virtual void ExtendAssetRegistryTags ( [TArray](API\Runtime\Core\Containers\TArray)< [UObject::FAssetRegistryTag](API\Runtime\CoreUObject\UObject\UObject\FAssetRegistryTag) > & OutTags ) const